Jackson's longtime friend has claimed that he donated his sperm to the late singer in the mid-1990s, but they never spoke about it again.

Lester has said that he hopes to undergo DNA tests with the permission of the three children.

"He was a great dad to them, brought them up and was brilliant with the kids so I just didn't go there but there is obviously a good possibility [that I could be the biological father]," he explained.

"I wouldn't have a DNA test without the children's permission but when the children come of age, and it's not far away, and they decide they want me to do it then I will. It is up to them."

Talking about their alleged agreement, Lester added: "I remember Michael ringing and saying, 'Oh, you don't have any fertility difficulties do you?'. He was half joking so I joked, 'Oh, I just look at her and she gets pregnant'.